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e7030a18a6
* refactor(build): Don't use closure-calculate-chunks
Rewrite the getChunkOptions function to not use
closure-calculate-chunks, but instead just chunk the input files
(more or less) by subdirectory: first chunk is core/, second is
blocks/, etc.
This does make a material change to blockly_compressed.js,
because we end up feeding several empty modules that contain
only typescript interface declarations and which tsc
compiles to "export {};" in the input to Closure Compiler
(closure-calculate-chunks is smart enough to notice that
no other module depends on these), which results in ~1.7KiB of
superflous
var module$build$src$core$interfaces$i_ast_node_location_svg={};
declarations. This can be avoided by filtering such empty modules
out but that has been left for a future commit.
This adds the glob NPM package as a dev dependency, but gulp
and several other existing dev dependencies already depend on
it.
Build time is sped up by about a factor of 3x, due to removal
of the buildDeps step that was really slow:
$ time npm run build
before:
real 0m24.410s
user 0m16.010s
sys 0m1.140s
after:
real 0m8.397s
user 0m11.976s
sys 0m0.694s
* chore(build): Remove buildDeps task
* refactor: Remove $build$src infix from munged paths
Closure Compiler renames module globals so that they do not
clash when multiple modules are bundled together. It does so
by adding a "$$module$build$src$path$to$module" suffix (with
the module object istelf being named simply
"$module$build$src$path$to$module").
By changing the gulp.src base option to be build/src/ instead
of ./ (referring to the repostiory root), Closure Compiler
obligingly shortens all of these munged named by removing the
"$build$src" infix, reducing the size of the compressed chunks
by about 10%; blockly_compressed.js goes from 900595 to 816667
bytes.
* chore(build): Compute module object munged name from entrypoint
- Add modulePath to compute the munged name of the entrypoint
module from the entrypoint module filename, and use this
instead of hard-coded chunk.exports paths.
- Be more careful about when we are using poxix vs. OS-specific
paths, especially TSC_OUTPUT_PATH which is regularly passed
to gulp.src, which is documented as taking only posix paths.
- Rename one existing variable modulePath -> entryPath to try
to avoid confusion with new modulePath function.